Reservoir pen



1951 A. SIMON] 2,565,667

RESERVOIR PEN Filed March 9, 1949 FIG 4 F165 M VE IVTOR:

ARMA/vDo SIMON! $7 @We Patented Aug. 28, 1951 oFFicE RESERVOIR PENArmando Simoni, Bologna, Italy Application March 9, 1949, Serial No.80,550 In Italy March 18, 1948 1 Claim.

This invention refers to reservoir pens employing a nib, moreparticularly of the type in which the nib is enclosed with the exceptionof its tip by a sleeve which serves for concealing andprotecting thenib.

The characteristic feature of this invention is to provide a nib whichis formed by a rectilinear portion followed by an inclined portionending by the writing tip, the inclination of the latter portion beingsuch as to bring the tip on the pen axis. With this nib construction thepen may be used with the convex portion of the nib turned eitherupwardly, in which case it operates as an ordinary pen with a flexiblepoint, or downwardly, in which case it operates as a transfer pen with arigid point. In both cases the writing point is constantly in the sameposition, that is, on the pen axis.

Preferably, the nib body is of substantially semi-cylindrical form asordinary nibs, while its tapered front portion is bent through an obtuseangle towards the axis, in order to bring the suitably straightenedpoint on the pen axis.

This special shape of the nib affords considerable advantages over knownconstructions.

The nib point on the pen axis and the protecting hood afford a higherspeed and accuracy in writing. Moreover, both ordinary writing andtransfer writing are effected in the same easy and smooth manner,without any disturbance to the writer by reversing the pen, theinclination of the latter remaining the same. Transfer writing may beeffected even with a considerable pressure without fear of spoiling thenib or without imparting to the tip an excessive rigidity, smooth runninand ink delivery remaining constant.

In order to promptly ascertain the two writing positions, for ordinarywriting and transfer writing, respectively, the protecting hood for thenib may be provided with suitable reference marks, Or the end of thehood may be formed with a taper cut, in order to make a part of the nibback visible. The cut affords the further advantage of permitting anincreased flexibility of the nib point in ordinary writing and ensuringa proper rigidity in transfer writing.

The reservoir pen according to this invention affords the furtheradvantage over ordinary fountain pens with enclosed nib, of enablingnibs of increased size to be used, more particularly the same size ofnibs employed in pens with uncovered nib. This allows the use offountain pen inks of the normal type without any danger of dripping,affordin at the same time an increased flexibility of the nib.

vThe. accompanying drawing shows, by way of example, a diagrammaticalconstruction of the improved pen, wherein;

Figure 1 is a view of the lower pen portion partly in axial section;

Figures 2 and3 are front views of the pen from the right and left side,respectively, of Figure 1, and

Figure 4 shows a diagrammatic detail of the nib on an enlarged scale,

Figure 5 shows a modified construction of the protecting hood.

I denotes the pen body, forming at its lower end a portion 2 having anouter conical surface receiving the holder 3 for the nib serving fordelivering the ink, and the .nib 4. The nib is composed of a rectilinearportion 5 merging into an inclined portion ending by the writing point 1which is situated on the longitudinal axis A-A of the pen.

The nib is covered over most of its length, excepting the point 1, by ahood 8 which is forced on the conical portion 2 of the reservoir. Owingto the special arrangement of the nib described above, it is clear thatit is possible to write either with the convex nib portion turnedupwardly as in ordinary nib pens, or in a position to to the former,with the convex nib portion turned downwardly. In the first position thepressure on the paper causes an elastic yielding of the nib throughwhich the writing may be adjusted at will, while in the latter positionthe nib reacts against the holder 3 and cannot bend, this resulting in astifi nib for instance for transfer writing.

In order to distinguish the said two positions, the hood 8 is providedwith reference marks which in the example shown are in the form ofarrows 9, 9', for instance differing in color, below which a letter F atH] corresponds to the position in which the nib is flexible and a letterR at Ill" on the opposite side corresponds to the position in which thenib is rigid.

In the above described arrangement, the hole in the protecting hood,through which the nib point extends, should be of a sufficient diameterfor allowing of the branches of the nib point to yield .by the desiredextent in ordinary writing. In the modification shown in figure 5, thisfiexibility is afforded by forming in the hood end a taper cut II Which,on fitting the hood in position comes over the back of the nib point.

This arrangement affords the further advantage of reducing the diameterof the axial bore in the hood, whereby the edge of the non-taperedportion reaches close to the point branches. This facilitates transferwriting and enables the pen to be used for drawing lines Or as aball-pointed pen. For this purpose, it will be sufiicient to rotate thehood in order to enclose by the nontapered portion of the hood the twobranches of the nib point.

It will be obvious that the above described construction enables nibs oflarger size. to be used than employed in reservoir pens with aprotecting hood enclosing the nib. Consequently, ordinary fountain peninks may be used, and the pen may be proportioned in the most favorablemanner for avoiding dripping of the ink.

What I claim is:

A fountain pen for handwriting, transfer writ ing and for drawing lines,comprising in combination with a reservoir, a feed bar fixed to saidreservoir, a single nib consisting of a substantially semi-cylindricalportion supported by said ieedbar, an intermediatetapered portionextending at an obtuse angle towards. the pen axis, and a straightenedfront portioncoincidingwith. the pen axis and forming the writing point,and a protecting hood for said nib frictionallv turnably held againstsaid reservoir and having an opening downwardly decreasing in sizethrough which the straightened end of the nib point reaches outwardlyand a taper cut for rendering the back of the tapered portion of saidnib visible.

ARMANDO SIMONI.

REFERENCES CITED The following references are of record in the file ofthis patent:

10 UNITED STATES PATENTS Number Name Date 663,782 Petit Dec. 11, 19001,615,980 Holmes Feb. 1, 1927 15 2,126,540 Dicks Aug. 9, 1938 2,234,812Snodgrass Mar. 11, 1941 2,316,479 Weigel Apr. 13, 1943 2,398,521Cloutier Apr. 16, 1946 2,403,703 Back July 9, 1946 20 2,417,861 DahlbergMar. 25, 1947 2,431,015 Andrews et a1. Nov. 18, 1947 2,483,603 Wing Oct.4, 1949 FOREIGN PATENTS 25 Number Country Date 253,087 Italy Mar. 6,1927

